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Climate Change > Atmosphere > Flashcards

Atmosphere Flashcards

1
Q

Trace gases

A

Steam, methane, co2, n20, 03, neon, helium,

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2
Q

Percentage of nitrogen and oxygen in atmosphere

A

N 78% 0 21%

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3
Q

Weather

A

Instant state of the atmosphere, daily values of temperature, precipitation, pressure, windspeed. Short period of time

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4
Q

Climate

A

Average values, average behaviour of continents, oceans, atmosphere. Long period of time

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5
Q

Difference between weather and climate

A

Measure of time. Weather= conditions short period of time. Climate= how the atmosphere behaves in long periods of time

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6
Q

Atmosphere functions

A 
Solar radiation filtration
Breathing photosynthesis
Regulation of:
Earths temperature
Biogeochemical cycles
Hydrological cycles
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7
Q

Radiative (climate) forcing

A

Difference of insolation absorbed by earth and energy radiated back to space.
Insolation absorbed- energy back release

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8
Q

Radiative forcing is quantified at the

A

Tropopause

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9
Q

Positive forcing means

A

More incoming energy, so warms the system

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10
Q

Negative forcing

A

More outgoing energy, so cools the system

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11
Q

Climate factors

A

Physical and geographical conditions that are relatively constants in time and space, and related to energy transfer (heat)

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12
Q

Examples climates factors

A

Latitude, altitude and distnce from the sea, ocean drifts, vegetation coverage, water bodies, pressure and wind system

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13
Q

Earths atmosphere is moving due…

A

Differential action of the surface warming

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14
Q

Tropics receive more heat than poles due….

A

Solar rays are more perpendicular, cross sectional area is smaller, and thickness of atmosphere higher at poles

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15
Q

Earth atmosphere gets THINNER the HIGHER altitude because……

A

Higher ground presents less atmosphere material to store heat

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16
Q

Explains continentality

A

Summer= land and seas store heat from the sun
Land reflects more heat than seas
Winter= land and seas release heat stored
Ocean have more heat to release than sand

17
Q

Ocean drifts transports..

A

Large amount of heat throughout the world

18
Q

Oceans have a fast or slow response time to changes?

A

Slow

19
Q

Permanent gases in atmosphere

A

N, o,

20
Q

Wind is the

A

Air moving from a high pressure region towards a low pressure region.

21
Q

Warmer air has…

A

Low pressure

22
Q

High pressure has…

A

Colder air

23
Q

Climate change agents

A

Water, co2, nox (formation of ozone and acid rain), 03, CFC HCFC HFC,

24
Q

CFC contribute to..

A

Ozoe depletion

25
Q

ODP has been set at

A

Montreal protocol

26
Q

GHG has ser a protocol in

A

Kyoto

27
Q

Ice cores extracted from glaciers provides us..

A

An atmospheric timeline of earths history

28
Q

Most abundant trace gas

A

Argon

29
Q

What is GHG

A

Gas in atmosphere that absorbs and emits radiation within the thermal infrared range

30
Q

Albedo

A

Ability of a surface to reflect light

31
Q

Anthropogenic sources

A

Combustion process: co2, co, nox
Industry
Transportation
Agricultural

32
Q

Sources of anthropogenic nox

A

Motor vehicles

33
Q

Energy balance

A

Amount of radiating energy that comes in and out constitues the earths budget

34
Q

Optical regions

A

Ultraviolet, visible, infrared

35
Q

Solar radiation fraction reflected has an average of

A

0.3

36
Q

What is ODP OF A CHEMICAL COMPOUND

A

Relative amount of degradation to the ozone layer it can cause

37
Q

Natural source of GHG

A

Biogenic (vegetation), soils (n2o),

38
Q

Equivalent co2

A

Concentration of co2 that would cause the same level of radiative forcing as a given type

39
Q

Co2 equivalency

A

Quantity that describes the amount of co2 that would have the same GWP when measured over a specified timescale

Climate Change (2 decks)

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